Frequencies for first 10,000 rows of m_harm variable in vehicle dataset :

       Most |
    Harmful |
      Event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,553       15.53       15.53
          2 |        136        1.36       16.89
          3 |         38        0.38       17.27
          5 |         41        0.41       17.68
          6 |          1        0.01       17.69
          7 |         15        0.15       17.84
          8 |      1,279       12.79       30.63
          9 |        177        1.77       32.40
         10 |         63        0.63       33.03
         11 |         12        0.12       33.15
         12 |      5,249       52.49       85.64
         13 |        163        1.63       87.27
         14 |        137        1.37       88.64
         15 |         23        0.23       88.87
         16 |          3        0.03       88.90
         17 |         13        0.13       89.03
         18 |         24        0.24       89.27
         19 |         18        0.18       89.45
         21 |         26        0.26       89.71
         22 |         24        0.24       89.95
         23 |         22        0.22       90.17
         24 |         76        0.76       90.93
         25 |         21        0.21       91.14
         26 |          3        0.03       91.17
         27 |         18        0.18       91.35
         28 |          1        0.01       91.36
         29 |         43        0.43       91.79
         30 |        136        1.36       93.15
         31 |         26        0.26       93.41
         32 |         23        0.23       93.64
         33 |         22        0.22       93.86
         34 |         38        0.38       94.24
         35 |         31        0.31       94.55
         36 |         18        0.18       94.73
         37 |         26        0.26       94.99
         38 |         36        0.36       95.35
         39 |         36        0.36       95.71
         40 |          3        0.03       95.74
         41 |          1        0.01       95.75
         42 |        385        3.85       99.60
         43 |         35        0.35       99.95
         44 |          1        0.01       99.96
         99 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016